isolated-vm has vulnerable CachedDataOptions in API
Priority MEDIUM 45CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-693.
Summary
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept `cachedData` payloads from a user.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01296 70th percentileScored 2026-11-07
Fix Fixed isolated-vm (npm): 4.3.7
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| laverdet | isolated-vm | up to 4.3.6 | — | No fix listed | CNA |
| — | isolated-vm (npm) | before 4.3.7 | 4.3.7 | Patch available | GHSA-2jjq-x548-rhpv |
- isolated-vm Vendorlaverdet Affected up to 4.3.6 Fixed in — No fix listed CNA
- isolated-vm (npm) Vendor— Affected before 4.3.7 Fixed in 4.3.7 Patch available GHSA-2jjq-x548-rhpv
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isolated-vm_project:isolated-vm:*:*:*:*:*:node.js:*:* | up to 4.3.6 | Vulnerable | Isolated-vm Project |
- cpe:2.3:a:isolated-vm_project:isolated-vm:*:*:*:*:*:node.js:*:* Versions up to 4.3.6 Vulnerable ·Isolated-vm Project
Remediation
- Fix · GHSA-2jjq-x548-rhpv isolated-vm (npm) Fixed in 4.3.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-39266
- 2026-10-03 Alias added: GHSA-2jjq-x548-rhpv
References
Advisory 2
More Isolated-vm Project Isolated-vm vulnerabilities
- TI-2021-04511 Misuse of `Reference` and other transferable APIs may lead to access to nodejs isolate CVSS 3.1CRITICAL 9.6
Sources
- CVE-2022-39266 · CVE Program
- CVE-2022-39266 · NVD
- FIRST EPSS
- GHSA-2jjq-x548-rhpv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences